CN104806629A

CN104806629A - Thrust bearing of centrifugal compressor

Info

Publication number: CN104806629A
Application number: CN201510216791.6A
Authority: CN
Inventors: 程林
Original assignee: Chongqing General Industry Group Co Ltd
Current assignee: Chongqing General Industry Group Co Ltd
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2015-07-29
Anticipated expiration: 2035-04-30
Also published as: CN104806629B

Abstract

The invention relates to the technical field of bearings, and provides a thrust bearing of a centrifugal compressor. The bearing comprises a thrust block, a clamping hoop, an elastic pad, an adjustment pad, a bearing shell and a positioning pin, wherein the adjustment pad is connected with the bearing shell; the elastic pad is connected with the adjustment pad and the thrust block respectively; the positioning pin is connected between the adjustment pad and the bearing shell; the clamping hoop is connected with the bearing shell and the thrust block respectively. By design of a convex strip on the thrust block, pouring of a babbitt metal layer on the thrust block and design of concave and convex alternated bosses on the adjustment pad, the adaptive adjustment capacity of the thrust bearing is obviously improved, and the operation is more stable and reliable; the thrust bearing of the centrifugal compressor is simple and compact in structure; the precision between bearings is easy to guarantee, and the bearing is more convenient to mount and detach; production manufacturing and maintenance are facilitated; the stability and the reliability of operation of the centrifugal compressor unit are effectively guaranteed.

Description

A kind of centrifugal compressor thrust bearing

Technical field

The present invention relates to technical field of bearings, refer more particularly to a kind of centrifugal compressor thrust bearing.

Background technique

The industry such as petrochemical industry, refrigeration is generally carried with centrifugal compressor, is compressed various gas both at home and abroad at present, and bearing arrangement is the requisite important spare part of centrifugal compressor, the operation of direct decision centrifugal compressor and stability are that centrifugal compressed function is normally run and the main guarantee in working life.The mode of what at present the thrust bearing of this kind equipment generally adopted the is tilting-pad bearing that fixed thrust face or structure are comparatively complicated realizes, there is certain limitation in the bearing load of fixed thrust face, and without any adaptive ability, stable poor, above-mentioned tilting-pad bearing then system is comparatively complicated, structural design and lubricating oil system loaded down with trivial details, boundary dimension is compared greatly, and installing/dismounting is inconvenient, manufacture cost is high.

Summary of the invention

The present invention is directed to above-mentioned thrust bearing prior art existing defects, a kind of centrifugal compressor thrust bearing is provided, this bearing comprises thrust block, clip, spring mattress, adjustment pad, bearing housing, locating stud, adjustment pad is connected with bearing housing, spring mattress is connected with adjustment pad, thrust block respectively, between adjustment pad and bearing housing, be also connected with locating stud, clip is connected with bearing housing, thrust block respectively.

Further, the thrust face of thrust block has all built babbit layer.

Further, the thickness of babbit layer is 1mm ~ 2mm, more specifically, babbit layer be thickness 1.5mm.

Further, Babbitt is kamash alloy.

Further, thrust block is 6, and has raised line in thrust block bottom design.

Further, adjustment pad there are 6 concavo-convex alternate boss with the attachment face of spring mattress.

Further, spring mattress is the stainless steel that 1.5mm ~ 2.5mm is thick, and more specifically, the thickness of spring mattress is 2mm.

Further, the raised line bottom each thrust block is between two boss of adjustment pad.

The present invention is owing to have employed independently thrust block, and spring mattress, adjustment pad, the technical characteristicss such as locating stud, thrust block designs raised line, thrust block builds babbit layer, concavo-convex alternate boss is designed on adjustment pad, the thrust bearing adaptive adjustment capability of this programme is significantly strengthened, run more stable, reliably, this programme is simple and compact for structure, precision between bearing is easy to ensure, installing/dismounting is more convenient, be easy to manufacture and maintaining, effectively ensure that stability and the reliability of centrifugal compressor unit operation, thus effectively improve manufacturing efficiency.

Accompanying drawing explanation

To be that the present invention is main look partial schematic sectional view to Fig. 1;

Fig. 2 is schematic top plan view of the present invention;

Fig. 3 is adjustment pad schematic top plan view of the present invention;

Fig. 4 is adjustment pad revolved section schematic diagram of the present invention;

Fig. 5 is thrust block schematic front view of the present invention;

Fig. 6 is thrust block schematic top plan view of the present invention;

Description of reference numerals: 1 thrust block, 2 clips, 3 spring mattress, 4 adjustment pad, 5 bearing housinges, 6 locating studs, 7 raised lines, 8 boss.

Embodiment

Below with reference to accompanying drawing, technological scheme of the present invention is elaborated, so that those skilled in the art better understand this programme.

As shown in accompanying drawing 1, accompanying drawing 2, this centrifugal compressor thrust bearing comprises thrust block 1, clip 2, spring mattress 3, adjustment pad 4, bearing housing 5, locating stud 6, adjustment pad 4 is connected with bearing housing 5, spring mattress 3 is connected with adjustment pad 4, thrust block 1 respectively, locating stud 6 is also connected with between adjustment pad 4 and bearing housing 5, locating stud has the function preventing from rotating between adjustment pad 4 and bearing housing 5, and clip 2 is connected with bearing housing 5, thrust block 1 respectively; More specifically, the thrust face of thrust block 1 has all built babbit layer, and its thickness is 1mm ~ 2mm, the thickness 1.5mm of babbit layer, and Babbitt is kamash alloy, reduces the friction factor of bearing further, improves bearing wear resistance; Thrust block 1 is 6, as shown in accompanying drawing 5, accompanying drawing 6, there is raised line 7 in thrust block 1 bottom design, as shown in accompanying drawing 3, accompanying drawing 4, adjustment pad 4 has 6 concavo-convex alternate boss 8 with the attachment face of spring mattress 3, and spring mattress 3 is the stainless steel that 1.5mm ~ 2.5mm is thick; More specifically, spring mattress 3 thickness is 2mm; Raised line 7 bottom each thrust block 1 is between two boss 8 of adjustment pad 4, and this bearing structure has stronger adaptive adjustment capability, and bearing installing/dismounting is more convenient, is easy to manufacture and maintaining.During embody rule, the cylindrical on bearing housing 5 and end face have installation locating function, are adopted by this thrust bearing the radial scheme adding end face to be installed on centrifugal compressor internal bearings seat.The present invention effectively can improve the adaptive ability of thrust bearing and operation stability and reliability, and this bearing structure is simply compact, be easy to I&M.

Claims

1. a centrifugal compressor thrust bearing, it is characterized in that comprising thrust block (1), clip (2), spring mattress (3), adjustment pad (4), bearing housing (5), locating stud (6), adjustment pad (4) is connected with bearing housing (5), spring mattress (3) is connected with adjustment pad (4), thrust block (1) respectively, between adjustment pad (4) and bearing housing (5), be also connected with locating stud (6), clip (2) is connected with bearing housing (5), thrust block (1) respectively.

2. a kind of centrifugal compressor thrust bearing as claimed in claim 1, is characterized in that the thrust face of thrust block (1) has all built babbit layer.

3. a kind of centrifugal compressor thrust bearing as claimed in claim 2, is characterized in that the thickness of babbit layer is 1mm ~ 2mm, and more specifically, the thickness of babbit layer is 1.5mm.

4. a kind of centrifugal compressor thrust bearing as claimed in claim 3, is characterized in that Babbitt is kamash alloy.

5. a kind of centrifugal compressor thrust bearing as claimed in claim 4, is characterized in that thrust block (1) is 6, and has raised line in thrust block (1) bottom design.

6. a kind of centrifugal compressor thrust bearing as claimed in claim 5, is characterized in that attachment face that is upper in adjustment pad (4) and spring mattress (3) has 6 concavo-convex alternate boss.

7. a kind of centrifugal compressor thrust bearing as claimed in claim 6, it is characterized in that spring mattress (3) is for the thick stainless steel of 1.5mm ~ 2.5mm, more specifically, the thickness of spring mattress (3) is 2mm.

8. a kind of centrifugal compressor thrust bearing as claimed in claim 7, is characterized in that the raised line of each thrust block (1) bottom is positioned between two boss of adjustment pad (4).